github.com/pwn-term/docker@v0.0.0-20210616085119-6e977cce2565/cli/man/src/container/unpause.md (about)

     1  The `docker container unpause` command un-suspends all processes in a container.
     2  On Linux, it does this using the freezer cgroup.
     3  
     4  See the [freezer cgroup documentation]
     5  (https://www.kernel.org/doc/Documentation/cgroup-v1/freezer-subsystem.txt) for
     6  further details.